./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:56:56,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:56:56,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:56:56,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:56:56,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:56:56,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:56:56,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:56:56,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:56:56,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:56:56,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:56:56,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:56:56,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:56:56,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:56:56,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:56:56,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:56:56,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:56:56,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:56:56,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:56:56,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:56:56,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:56:56,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:56:56,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:56:56,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:56:56,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:56:56,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:56:56,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:56:56,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:56:56,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:56:56,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:56:56,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:56:56,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:56:56,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:56:56,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:56:56,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:56:56,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:56:56,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:56:56,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:56:56,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:56:56,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:56:56,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:56:56,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:56:56,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:56:56,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:56:56,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:56:56,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:56:56,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:56:56,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:56:56,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:56:56,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:56:56,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:56:56,349 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:56:56,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:56:56,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:56:56,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:56:56,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:56:56,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:56:56,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:56:56,352 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:56:56,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2021-12-16 03:56:56,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:56:56,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:56:56,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:56:56,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:56:56,617 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:56:56,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-16 03:56:56,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81978b212/7e28edca39b446d982209a7541de8452/FLAGcaf110309 [2021-12-16 03:56:57,283 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:56:57,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-16 03:56:57,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81978b212/7e28edca39b446d982209a7541de8452/FLAGcaf110309 [2021-12-16 03:56:57,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81978b212/7e28edca39b446d982209a7541de8452 [2021-12-16 03:56:57,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:56:57,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:56:57,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:56:57,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:56:57,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:56:57,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:56:57" (1/1) ... [2021-12-16 03:56:57,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244df90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:57, skipping insertion in model container [2021-12-16 03:56:57,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:56:57" (1/1) ... [2021-12-16 03:56:57,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:56:57,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:56:58,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-16 03:56:59,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:56:59,092 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:56:59,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-16 03:56:59,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:56:59,498 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:56:59,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59 WrapperNode [2021-12-16 03:56:59,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:56:59,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:56:59,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:56:59,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:56:59,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,754 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2021-12-16 03:56:59,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:56:59,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:56:59,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:56:59,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:56:59,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:56:59,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:56:59,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:56:59,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:56:59,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:56:59,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (1/1) ... [2021-12-16 03:57:00,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:57:00,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:57:00,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:57:00,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:57:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-16 03:57:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-16 03:57:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-16 03:57:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-16 03:57:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-16 03:57:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-16 03:57:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-16 03:57:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-16 03:57:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-16 03:57:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-16 03:57:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2021-12-16 03:57:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2021-12-16 03:57:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-16 03:57:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-16 03:57:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 03:57:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 03:57:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-16 03:57:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-16 03:57:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-16 03:57:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-16 03:57:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-16 03:57:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-16 03:57:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-16 03:57:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-16 03:57:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-16 03:57:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-16 03:57:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-16 03:57:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-16 03:57:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 03:57:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 03:57:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-16 03:57:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-16 03:57:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-16 03:57:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-16 03:57:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:57:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:57:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-16 03:57:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-16 03:57:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-16 03:57:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-16 03:57:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-16 03:57:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-16 03:57:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-16 03:57:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-16 03:57:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-16 03:57:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-16 03:57:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-16 03:57:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-16 03:57:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:57:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:57:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:57:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:57:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-16 03:57:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-16 03:57:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-16 03:57:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-16 03:57:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-16 03:57:00,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-16 03:57:00,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-16 03:57:00,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-16 03:57:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-16 03:57:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-16 03:57:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 03:57:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 03:57:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 03:57:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 03:57:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-16 03:57:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-16 03:57:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-16 03:57:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-16 03:57:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-16 03:57:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-16 03:57:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-16 03:57:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-16 03:57:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-16 03:57:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-16 03:57:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2021-12-16 03:57:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2021-12-16 03:57:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-16 03:57:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-16 03:57:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-16 03:57:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-16 03:57:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 03:57:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 03:57:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:57:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 03:57:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 03:57:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-16 03:57:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-16 03:57:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-16 03:57:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-16 03:57:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-16 03:57:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-16 03:57:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-16 03:57:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-16 03:57:00,160 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-16 03:57:00,160 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-16 03:57:00,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:57:00,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-16 03:57:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-16 03:57:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-16 03:57:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-16 03:57:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-16 03:57:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-16 03:57:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-16 03:57:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-16 03:57:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-16 03:57:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:57:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:57:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2021-12-16 03:57:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2021-12-16 03:57:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-16 03:57:00,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-16 03:57:00,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:57:00,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:57:00,163 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-16 03:57:00,163 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-16 03:57:00,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-16 03:57:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-16 03:57:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-16 03:57:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-16 03:57:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 03:57:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 03:57:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-16 03:57:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-16 03:57:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-16 03:57:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-16 03:57:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:57:00,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:57:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 03:57:00,171 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 03:57:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 03:57:00,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 03:57:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-16 03:57:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-16 03:57:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-16 03:57:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-16 03:57:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2021-12-16 03:57:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2021-12-16 03:57:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 03:57:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 03:57:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-16 03:57:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-16 03:57:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2021-12-16 03:57:00,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2021-12-16 03:57:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 03:57:00,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 03:57:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-16 03:57:00,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-16 03:57:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 03:57:00,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 03:57:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-16 03:57:00,173 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-16 03:57:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-16 03:57:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-16 03:57:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-16 03:57:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-16 03:57:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-16 03:57:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-16 03:57:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-16 03:57:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-16 03:57:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:57:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-16 03:57:00,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-16 03:57:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-16 03:57:00,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-16 03:57:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-16 03:57:00,175 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-16 03:57:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-16 03:57:00,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-16 03:57:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-16 03:57:00,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-16 03:57:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-16 03:57:00,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-16 03:57:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 03:57:00,176 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 03:57:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-16 03:57:00,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-16 03:57:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-16 03:57:00,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-16 03:57:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-16 03:57:00,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-16 03:57:00,177 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:57:00,177 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:57:00,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2021-12-16 03:57:00,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2021-12-16 03:57:00,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2021-12-16 03:57:00,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2021-12-16 03:57:00,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-16 03:57:00,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-16 03:57:00,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:57:00,178 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-16 03:57:00,179 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-16 03:57:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-16 03:57:00,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-16 03:57:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-16 03:57:00,179 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-16 03:57:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:57:00,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:57:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-16 03:57:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-16 03:57:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-16 03:57:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-16 03:57:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-16 03:57:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-16 03:57:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:57:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-16 03:57:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-16 03:57:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:57:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 03:57:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2021-12-16 03:57:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2021-12-16 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2021-12-16 03:57:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2021-12-16 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:57:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:57:00,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-16 03:57:00,182 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-16 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-16 03:57:00,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-16 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-16 03:57:00,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-16 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2021-12-16 03:57:00,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2021-12-16 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-16 03:57:00,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-16 03:57:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-16 03:57:00,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-16 03:57:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-16 03:57:00,183 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-16 03:57:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-16 03:57:00,183 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-16 03:57:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 03:57:00,183 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 03:57:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-16 03:57:00,184 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-16 03:57:00,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 03:57:00,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 03:57:00,184 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-16 03:57:00,184 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-16 03:57:00,185 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 03:57:00,187 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 03:57:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-16 03:57:00,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-16 03:57:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:57:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:57:00,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:57:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-16 03:57:00,188 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-16 03:57:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-16 03:57:00,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-16 03:57:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-16 03:57:00,190 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-16 03:57:00,794 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:57:00,797 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:57:01,137 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 03:57:01,552 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2021-12-16 03:57:06,550 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:57:06,573 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:57:06,573 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:57:06,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:57:06 BoogieIcfgContainer [2021-12-16 03:57:06,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:57:06,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:57:06,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:57:06,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:57:06,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:56:57" (1/3) ... [2021-12-16 03:57:06,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb0fa33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:57:06, skipping insertion in model container [2021-12-16 03:57:06,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:56:59" (2/3) ... [2021-12-16 03:57:06,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb0fa33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:57:06, skipping insertion in model container [2021-12-16 03:57:06,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:57:06" (3/3) ... [2021-12-16 03:57:06,584 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-16 03:57:06,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:57:06,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:57:06,628 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:57:06,632 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:57:06,633 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:57:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2021-12-16 03:57:06,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-16 03:57:06,698 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:57:06,699 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:57:06,699 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:57:06,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:57:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2021-12-16 03:57:06,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:57:06,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438108360] [2021-12-16 03:57:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:57:06,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:57:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:57:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:57:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:57:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:57:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:57:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:57:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:57:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:57:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-16 03:57:07,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:57:07,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438108360] [2021-12-16 03:57:07,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438108360] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:57:07,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:57:07,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:57:07,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536019650] [2021-12-16 03:57:07,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:57:07,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:57:07,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:57:07,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:57:07,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:57:07,300 INFO L87 Difference]: Start difference. First operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-16 03:57:10,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:57:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:57:15,384 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2021-12-16 03:57:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:57:15,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2021-12-16 03:57:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:57:15,477 INFO L225 Difference]: With dead ends: 6691 [2021-12-16 03:57:15,478 INFO L226 Difference]: Without dead ends: 4554 [2021-12-16 03:57:15,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:57:15,498 INFO L933 BasicCegarLoop]: 3165 mSDtfsCounter, 4027 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4347 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 3185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-16 03:57:15,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4347 Valid, 7077 Invalid, 3185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 1772 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-16 03:57:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2021-12-16 03:57:15,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2021-12-16 03:57:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 2945 states have (on average 1.33276740237691) internal successors, (3925), 2988 states have internal predecessors, (3925), 866 states have call successors, (866), 237 states have call predecessors, (866), 236 states have return successors, (859), 837 states have call predecessors, (859), 859 states have call successors, (859) [2021-12-16 03:57:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2021-12-16 03:57:15,722 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2021-12-16 03:57:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:57:15,724 INFO L470 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2021-12-16 03:57:15,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-16 03:57:15,724 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2021-12-16 03:57:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-16 03:57:15,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:57:15,737 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:57:15,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:57:15,737 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:57:15,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:57:15,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2021-12-16 03:57:15,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:57:15,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394181594] [2021-12-16 03:57:15,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:57:15,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:57:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:57:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:15,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:57:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:57:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:57:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:57:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:57:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:57:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:57:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 03:57:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 03:57:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-16 03:57:16,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:57:16,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394181594] [2021-12-16 03:57:16,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394181594] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:57:16,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:57:16,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:57:16,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145440138] [2021-12-16 03:57:16,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:57:16,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:57:16,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:57:16,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:57:16,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:57:16,024 INFO L87 Difference]: Start difference. First operand 4048 states and 5650 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:57:19,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:57:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:57:23,154 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2021-12-16 03:57:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:57:23,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2021-12-16 03:57:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:57:23,196 INFO L225 Difference]: With dead ends: 12746 [2021-12-16 03:57:23,196 INFO L226 Difference]: Without dead ends: 8719 [2021-12-16 03:57:23,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:57:23,213 INFO L933 BasicCegarLoop]: 3105 mSDtfsCounter, 3824 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 6892 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-16 03:57:23,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4155 Valid, 6892 Invalid, 3216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1358 Valid, 1857 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-12-16 03:57:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2021-12-16 03:57:23,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2021-12-16 03:57:23,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 5584 states have (on average 1.3273638968481376) internal successors, (7412), 5665 states have internal predecessors, (7412), 1627 states have call successors, (1627), 459 states have call predecessors, (1627), 458 states have return successors, (1620), 1575 states have call predecessors, (1620), 1620 states have call successors, (1620) [2021-12-16 03:57:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2021-12-16 03:57:23,523 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2021-12-16 03:57:23,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:57:23,524 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2021-12-16 03:57:23,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:57:23,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2021-12-16 03:57:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-16 03:57:23,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:57:23,528 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:57:23,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:57:23,529 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:57:23,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:57:23,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2021-12-16 03:57:23,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:57:23,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50111232] [2021-12-16 03:57:23,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:57:23,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:57:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:57:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:57:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:57:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:57:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:57:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:57:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:57:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:57:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 03:57:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:57:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:57:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-16 03:57:23,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:57:23,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50111232] [2021-12-16 03:57:23,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50111232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:57:23,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:57:23,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:57:23,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202507147] [2021-12-16 03:57:23,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:57:23,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:57:23,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:57:23,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:57:23,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:57:23,804 INFO L87 Difference]: Start difference. First operand 7670 states and 10659 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 03:57:27,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:57:35,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:57:35,785 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2021-12-16 03:57:35,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 03:57:35,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2021-12-16 03:57:35,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:57:36,060 INFO L225 Difference]: With dead ends: 29996 [2021-12-16 03:57:36,074 INFO L226 Difference]: Without dead ends: 22347 [2021-12-16 03:57:36,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 03:57:36,178 INFO L933 BasicCegarLoop]: 3167 mSDtfsCounter, 7733 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 4043 mSolverCounterSat, 4139 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8188 SdHoareTripleChecker+Valid, 8020 SdHoareTripleChecker+Invalid, 8183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4139 IncrementalHoareTripleChecker+Valid, 4043 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-12-16 03:57:36,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8188 Valid, 8020 Invalid, 8183 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4139 Valid, 4043 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2021-12-16 03:57:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2021-12-16 03:57:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2021-12-16 03:57:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15170 states, 11050 states have (on average 1.3270588235294118) internal successors, (14664), 11207 states have internal predecessors, (14664), 3207 states have call successors, (3207), 913 states have call predecessors, (3207), 912 states have return successors, (3200), 3109 states have call predecessors, (3200), 3200 states have call successors, (3200) [2021-12-16 03:57:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2021-12-16 03:57:36,861 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2021-12-16 03:57:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:57:36,861 INFO L470 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2021-12-16 03:57:36,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 03:57:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2021-12-16 03:57:36,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 03:57:36,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:57:36,865 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:57:36,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:57:36,865 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:57:36,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:57:36,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2021-12-16 03:57:36,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:57:36,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149368644] [2021-12-16 03:57:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:57:36,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:57:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:57:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:57:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:57:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:57:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:57:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:57:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:57:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:57:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 03:57:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:57:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:37,146 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-16 03:57:37,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:57:37,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149368644] [2021-12-16 03:57:37,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149368644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:57:37,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:57:37,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:57:37,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461918892] [2021-12-16 03:57:37,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:57:37,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:57:37,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:57:37,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:57:37,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:57:37,148 INFO L87 Difference]: Start difference. First operand 15170 states and 21071 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:57:40,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:57:49,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:57:49,957 INFO L93 Difference]: Finished difference Result 58956 states and 86037 transitions. [2021-12-16 03:57:49,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 03:57:49,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2021-12-16 03:57:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:57:50,303 INFO L225 Difference]: With dead ends: 58956 [2021-12-16 03:57:50,303 INFO L226 Difference]: Without dead ends: 43807 [2021-12-16 03:57:50,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 03:57:50,361 INFO L933 BasicCegarLoop]: 3071 mSDtfsCounter, 7614 mSDsluCounter, 4924 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 4127 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8051 SdHoareTripleChecker+Valid, 7995 SdHoareTripleChecker+Invalid, 8222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4127 IncrementalHoareTripleChecker+Valid, 4094 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-12-16 03:57:50,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8051 Valid, 7995 Invalid, 8222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4127 Valid, 4094 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2021-12-16 03:57:50,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2021-12-16 03:57:51,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 38538. [2021-12-16 03:57:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38538 states, 28142 states have (on average 1.3164664913652193) internal successors, (37048), 28354 states have internal predecessors, (37048), 7991 states have call successors, (7991), 1797 states have call predecessors, (7991), 2404 states have return successors, (10352), 8534 states have call predecessors, (10352), 7984 states have call successors, (10352) [2021-12-16 03:57:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38538 states to 38538 states and 55391 transitions. [2021-12-16 03:57:51,804 INFO L78 Accepts]: Start accepts. Automaton has 38538 states and 55391 transitions. Word has length 93 [2021-12-16 03:57:51,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:57:51,805 INFO L470 AbstractCegarLoop]: Abstraction has 38538 states and 55391 transitions. [2021-12-16 03:57:51,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:57:51,805 INFO L276 IsEmpty]: Start isEmpty. Operand 38538 states and 55391 transitions. [2021-12-16 03:57:51,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-16 03:57:51,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:57:51,810 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:57:51,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:57:51,811 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:57:51,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:57:51,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2146301045, now seen corresponding path program 1 times [2021-12-16 03:57:51,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:57:51,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618439287] [2021-12-16 03:57:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:57:51,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:57:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:57:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:57:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:57:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:57:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:57:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:57:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:57:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:57:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 03:57:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 03:57:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:57:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:57:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-16 03:57:52,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:57:52,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618439287] [2021-12-16 03:57:52,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618439287] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:57:52,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:57:52,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:57:52,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381641373] [2021-12-16 03:57:52,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:57:52,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:57:52,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:57:52,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:57:52,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:57:52,156 INFO L87 Difference]: Start difference. First operand 38538 states and 55391 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)